The 1.5 version of MemoryAnalyzer for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within System Tools, more precisely System Optimization.
This free software for Mac OS X was originally designed by The Eclipse Foundation. The most popular version among the program users is 1.1. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This app's bundle is identified as org.eclipse.mat.ui.
From the developer:
The Eclipse Memory Analyzer is a fast and feature-rich Java heap analyzer that helps you find memory leaks and reduce memory consumption.
Use the Memory Analyzer to analyze productive heap dumps with hundreds of millions of objects, quickly calculate the retained sizes of objects, see who is preventing the Garbage Collector from collecting objects, run a report to automatically extract leak suspects.
You may want to check out more software for Mac, such as DevonSync or DiskFire, which might be similar to MemoryAnalyzer.